Electric lamp



E. ALBER ELECTRIC LAMP Filed Dec. l

1 2/ TIE Patented Aug. 2l, i923.

f para altares EUGEN AMBER,` 0F- BASEL, SWITZERLAND.

y ELECTRIC LAMB Application led December To all wiofm/-z'i may concern.'

Be it known that "I, EUGEN Arena, a citizenoi" the Swiss Republic, andresident ot Basel, f;`witzerland, cheniist, have 'invented new anduseful Improvements in hllectric Lamps, of which the following is a"full,"

clear, and exact specification. v y `The present invention relates to an'elcotric lamp and particularly toV al pocket elec-4, tric battery lampof the kindv having differ!" ent degrees oft' brightness which a batteryfor thesupp ly of current is combinedV with an i incandescent glow lampdesigned; sub-` stantiallyfor the normal service voltage of' :thebattery. The essential feature or the editor normal service conditions.(normal or main battery) being composed ot a plural-r ity ofindividually exchangeable cells electri cally connected together inseriesonly by simple superimposition and contacting with-l out wires,strips, screws, solderingl and the like and having combined with it Voneor more additional elements of the samecontacting type asvthose ot' theVsaid main bat tery togetherwith convenient strip'contact switch meansso arranged that by the'switching-inof said additional element orelements the voltage impressed on the lamp vcan be" raised beyond thenormal value in order to` canse the lamp to be overrun and consequentlytohave a high light intensity. In

known Velectric lamps adapted for diilierent. degreesotbrightnes's,tlie'se degrees are in allv cases obtained onlyby-switching ,oil one orAV more cells oi a battery for the normalservice voltageoA which the glow lamp is constructed, but it isIhitherto unknown, so tar' as I am aware, in electric pocket lamps andthe like, to increase the supply voltage above the' normal batterytension by switching-in spef cial or additional cells in such ainannerthat the Ulow'lain ma tern aoraril burn 'with e V Y considerabletoverrunning and also to raise ther voltage of the battery (for whichthe glow lamp is constructed) it the battery should have deteriorated byswitching-in one or more additional cells so that the partiallylexhausted mainbattery may still VbeY utilized for supplying usefulcurrent, whereas otherwise such an exhausted battery must be thrownaway.`v f l The 'improved arrangementmay comprise abattery subdivided intoelements ofsuitable voltage having the points'ot connection oftheVbattery sections connected to an in- Vthe still inherent lies betweenthe double Serial No. 343,870.

candescent or glow lamp bodyV by means of suitable strip conductors andthe necessary switch contact devices. TVith this arrangew ment it ispossible tocauseV the lamp to burn temporarily at an abnormally highvoltage or, when the whole battery or some elements tlilreot-areybecoming exhausted, to utilize capacity ot the battery by the additionof one or more additional. elements with a greater etliciency than`would Aotherwise be possible.

vIt' for example aflainp 4with a three elenient battery/Vis arranged tosupply current to. an incandescent lamp designed lor the wfiltage oftlireeelements, when the battery Y improved lamp consists in the batteryadaptj `with a lamp having a lamp bulb designed Yfor operation on twobattery elements, if a third element is switched in. In the latter case,the incandescent lamp can also be designed for a normal running voltagewhich 'and triple element voltage.

. 'lhe i in proved arrangement is p articularlfy7 a dvantagcous inconnection with primary batteries, formed, vfor example, oit dry cellelements which .are easily replaceable. These cell elements may beconstructed in the iorin ot plates ot' the dry element type which bysimple superiniposition with their terminals el? opposite polarity incontact with one an?, othergive the desired total voltage. The

batteryinay also be composed partly of accumulator cells and partly ofgalvanic or dry elements, or the usual block batteries formed of two ormore elements rigidly ce niented together in one container may becombined with the `above mentioned indi- Vvi'dual elements. i

rlheiniproved lamp is particularly used as pocket lamp, but itis alsoapplicable to any other use, 'itor example as Vtable lamp, hand lamp,etc.

The accompanying drawing represents several embodiments of the subjector" inventionin the `torni of electric pocket lamps;

Fig. l is a vertical section ot one of these constructions, along line1-l of Fig. 2; A

Vllig. 2 is a vertical section thereof, along line 2 2 of Fig. 1';

Fig. @nis another vertical section thereof,

pleted by Va safety circuit breaker in the lamp-circuit;

Fig.A 6 shows the same safety device in a pocket lamp having a differentbattery coniposition;

7 giyes a further forniV of, pocketlainp the use' Qta blot-.k batteryand an additional battery element. 'l

te: larnn accordingto thefinyention.

)t Eerri'ngto ligrir'es 1,2 Iafn d '5, the nietallie lanipcaseformed'foitl two'parts 1, Qi'cons the current supply battery 3, the glow.t 'i l v A i.. .n np bodyy-l and Contact devices hereinafter'.

, bc'df The ripper case parti forming a cover hinged at-'S to thelowe'rpart or case body ZCaI'restheglow lainpfbodyfl screwed int-o a metallicreflector connected to the coyrfpart so asto have its one pole inmetal-V thereoqfflezif spring 11, wrien the cover part 1 1s closed,being' forced against. the first bat- Vtery' element. Thehatteryvconsists here of licfcontact'i'iyitli the` case partr A1, and acnryedlca't spring 11. fixed on the innergside four separate adjacent orsuperimposed elements I, Il, lll, 1V havingr the form of plates and4being in electric connection with onleanother bytheir contrary poles attheir side `faces, under the action ot'the `tensioned leaf spring l11,the construction of such plate elements, beinp1 well known. yThe elef-.ments l, AH, Hl constitntethe main or nor-V inzillwyi"'operatingv partsof the battery, Vwhile the element l/v'constitutes an additional one'for tension` strenggjtheiling` purposes. Whilst the upper element I' isin electric contact with the oase part 1, the lower element hesagainstan insulating plate 12 formingV the base part ofthe case liiody.Thisplate 12 carries two metallic Acontact strips 6, 9` er;- tending';into the. upper part ot the case., the Contact vstrip 9 'forming aterniinal poleto take oli' the current troni the lower elenient Il.. theContact strip o being'l recur-ved and inserted between theeleinents'lll. andll* so as to 'Storni a` terminal pole for takingolii'.v Vthe current from the third element/ The flree end oi thecontact strip 6 extendsbelow y a- Contact leaffspringl andthe free endof Y ot'one piece of sheet metahsaid con# the Contact strip 9 issituated below a con tactV leaf'springy 10 (Fig. Both these levaitsprings 7, 1 0, are integral with the recnryed elastic contact tia-pi13, being" formed tact tap 18 beingpin. electric contact with. thecentre pole 14 of; the glow. lamp lbody if leaf springs, 10 are normallyont` ,oilcontact with thefcontact exiting` -totheir ownelasticity,'rllhey are controlled.

bya switching slide 15 guided in 'aslot 1G provided inthe lampV case;v`Thisslildeicon.,

` showsI a indiiication of Vpocketl the conta r't strip c Aall the fonreleinents ofthe battery'fto there 'niay alsofbelenploy'ed aA pusher Lorro-` Vlmnp and'thefelenientsrnay have any conf Vthe case.A Y

e@ been dimmi-@Simi View einen e reciirved YconductingV strip`r 35'.'v"One 'te SStS @tV heeded Pin Pl'evledfwttl el iisuf lating'bnsh engagingoierthe lealitspiings Y 7,10. When the'slide 415 is pushed to theoneside troniits niiddlefinoperative posithe `batte'ry,"so thatthe'larnp biirns With'the usnalH battery tension` of three element-s,"llh'enthe contact slide 15 ispushed'to-the op posite sidethey cnirent isswitched'on over duce abr gliter lighting of the ianip ow iigtothenrre'ased operatrt'etension.. ,Y "C i stead @tithe sliding 'contactSvwlth .15.5,

tary switch oi' the' like.: switch mayalso' be] n ioilnted Iat anotherconvenient place jot the lainp case. li/loreoyer, the 'case oiffthevcnifent torni, such as rectangular, circular,

y ariely so on, and theglow- Zlainp body, morir, d here in Vthefcmjer"ibay also-be fenced Within, the Othe'reibody pei'toftie, caseQThe'ninnber ofthey battery eleinents may vary isx'alsA bssiblet y slewlfimiifbf'dy @if y ferilli Stre" thfele'* tiyely.- to the" mainA batteiytension2 indalso to place the glow lairrp body at' the top A Y iuftlier,.the 1eme @an be` nfovfledwith,

various .acceSSOW"t` devices, s l ch satej-'rbreakers, and therelative'"arrangement o iif lin'iits.v 'Y Y A Y Flgures 4t Yand 5 showafconstructional f i .l i

ornroif an electric pocket lamp wherein [t e( battery consistsA ofthree"cylindrical'ormatic!y ordinary, 'for exan'iple Zinc-ca elements1,' H, HI placed; le by side w1 the in Y' l terpositi'on aninsulatipnfsheet V1 ,i the centre pole (carboilif` of one,o'i'j,theifn,bea-l" ing' electrically covniiectedj to the oiiterpole (zinc)4 ofthefollowing Y"one by' 'nieansjof V115V minalpole of thebattery is,connected Vto Contact stripl 1,8, placed npoirinsulaltion w ini t-l'iela'rnpv case andconnected to i le fb' spring` 19 "arranged opposite thecentre po e!V 20V of the glow lamp body, Wliichfis lr e screwedinto thebody 2 of the case,"whilst the other. terminal? pole `ot"lYthe,liattevryisf orme'deither bytlfecontajct strip 21' bythe contactstrip'L22'whichi latteri ,cro d reo Deng @Leserinbthfaes 'overnameQasepvartslatth'e Apo' ,f tsfofthe 'Switchsl de l Pfl-fedi? ati no'Y

iscV Y with its outer pole into the metallic case body 2. The leafspring 19 serves for safety purposes. A control side cam 25 cooperatingtherewith is arranged onethe cover 1 Yof the case. Normally, the lampcircuit is interrupted by the leaf spring 19 and remains interruptedeven if unfortunately in the pocket the operating switch 23 should bedisplaced. For closing the lamp circuit at the leaf spring 19, the cover1 is opened and the control Vcam 25 so adjustedV that in closedVposition of the cover it allows the leaf spring 19 to be forced inwardsinto contact with the centre pole 20 of the glow lamp body, so that whenVoperating the switch 23', Y

the lamp circuit is completed through the battery. Obviously, the safetybreaker 19,

\ 25 may have any otherconvenient construction and be arranged at anyconvenient place of the case, outside orinside thereof.

Fig. 6 shows a` construction ofv lamp where- Vin the battery elements I,II, III, IVI are l 1 formed of a so-calledblcck battery VI whichnormally furnishes the current and of an additional zinc-carbon elementVII arranged Vover said block battery so as to have one of its poles 26in contact with` the pole 26a of the Y block-battery, whilst the otherpole (Zinc) ductor 29.

of the element VII forms directly one contact p'ole for the switch 23,the other contact pole of which is electrically connected by a conductor28 to the pole 26a of the block battery, which at its pole 27 is inelectric contact with the lamp supplying ccn- In both theseconstructions, the lamp case has a lower or main part of pr1smatic forniwith theelectric battery or elements therein and an `upper or top partof substantially semi-circular form wherein the glow lamp body as wellas the contact and switch devices are arranged.

Fig. 8 shows by-a transverse section an elec` tric pocket lamp with fourprismatic battery elements I, II, III, IV arranged to be used for theincreased lighting tension of Vthe lamp when they are connected with oneanother between the current conductors 30, 31, whilst for a lowertension one of the battery elements is cut off by Vmeans of a U-likeswitching bridge piece 32 of insulating material provided with ashort-circuiting strip 33, said bridge vpiece being inserted over thefourth battery element so as to electrically connect, by its strip 33,the third battery element with the corresponding current conductor 31.

The foregoing examples mainly differ from each other by the arrangementof the elements of their battery. A somewhat different form of theinvention is that wherein the battery elements are enclosed within aspecial box of insulating material removably inserted into the lamp caseof any convenient form, the said box being provided with the handoperatable circuit switch and having substantially the shape of anordinary block battery, so that it can be inserted into pocket lampcases of the usual kind.

Obviously, the Vterm element or battery element or dry `element used inthe foregoing description and hereinafter in the claim shall beconsidered 'as comprising any known or other construction of electricVcells of any nature (so called dry or wet) and of any composition.Furthermore, the switching operation herein referred to is to beunderstood in such a manner that one or more battery elements are addedt0 the respective source of current or again cut off therefrom.

What I claim is:

In a pocket electric battery lamp, a pocket case havinga lower part ofsubstantially rectangular cross section and a top part of substantiallysemi-circular form, a block bat-- tery constituting a normally usedcurrent supplying main battery, located within said lower case part, anelectric glow lamp body placed in said top part of the case and arrangedto be normally supplied with current from the block battery at thevoltage for which the glow lamp is constructed, an additional currentsupplying element combined with said block battery and switching meansto connect said additional element in series with the block battery andthe glow lamp body, so as to cause the lamp to be temporarily over-run,substantially as described.

In witness whereof I have hereunto signed .my name this 14th day ofNovember, 1919,

in the presence cftwo subscribing witnesses.

DR. EUGEN ALBER. Witnesses:

l/VILLIAM E. 'HoLLANm AMAND BRAUN.

